Corundum Trust Company, INC
In its 13F for Q4 2024 (holdings as of December 31, 2024, filed January 17, 2025), Corundum Trust Company, INC reported 49 stock positions worth $33.3 million. Its top holding was 3M (MMM) at 15.7% of the portfolio, followed by iShares Core S&P Small-Cap E (IJR, 10.9%) and iShares Select Dividend ETF (DVY, 7.5%). Compared with Q3 2024, it opened 5 new positions, sold out of 8, added to 3 and reduced 17. The biggest buy was a new position in Aya Gold & Silver (AYA) and the biggest sale SS SPDR S&P 500 ETF Trust-US (SPY, shares −60%).
- Most Recent 13F
- Q2 2026
- Location
- SIOUX FALLS, SD
- CIK
- 0001987720
- Portfolio Value
- $33.3M (Q4 2024)
- SEC Filing
- 0001987720-25-000001 ↗ filed Jan 17, 2025
Holdings Value
Holdings 49 stocks · $33.3M
| MMM 3M Co. | 15.70% | 40,503 | $5.2M | Reduce -0.4% |
| IJR iShares Core S&P Small-Cap E | 10.89% | 31,490 | $3.6M | Reduce -5.4% |
| DVY iShares Select Dividend ETF | 7.49% | 19,014 | $2.5M | No change |
| MSFT Microsoft Corp. | 7.20% | 5,692 | $2.4M | Reduce -0.7% |
| IJK iShares S&P Mid-Cap 400 Grow | 5.94% | 21,744 | $2.0M | Reduce -2.0% |
| AAPL Apple Inc. | 5.82% | 7,741 | $1.9M | Reduce -7.3% |
| IVV iShares Core S&P 500 ETF | 5.23% | 2,957 | $1.7M | No change |
| IJJ iShares S&P Mid-Cap 400 Valu | 4.94% | 13,166 | $1.6M | Reduce -3.1% |
| GOOG Alphabet Inc. Class C | 3.61% | 6,314 | $1.2M | Reduce -0.8% |
| EFA iShares MSCI Eafe ETF | 2.86% | 12,618 | $954K | Reduce -7.9% |
| LLY Eli Lilly & Co. | 2.73% | 1,178 | $909K | Reduce -2.2% |
| UNH Unitedhealth Group Inc. | 2.44% | 1,604 | $811K | Reduce -1.1% |
| SOLV Solventum Corp. | 2.01% | 10,111 | $668K | No change |
| JPM JPMorgan Chase & Co. | 1.77% | 2,457 | $589K | Reduce -2.2% |
| SKE Skeena Resources Ltd. | 1.71% | 65,250 | $569K | No change |
| VTHR Vanguard Russell 3000 | 1.48% | 1,892 | $491K | No change |
| OGNRF Orogen Royalties Inc. | 1.45% | 523,500 | $482K | No change |
| CSCO Cisco Systems Inc. | 1.36% | 7,669 | $454K | Reduce -2.0% |
| WDOFF Wesdome Gold Mines Ltd. | 1.29% | 48,000 | $431K | No change |
| SPY SS SPDR S&P 500 ETF Trust-US | 1.16% | 662 | $388K | Reduce -60.1% |
| MAG Mag Silver Corp. | 1.15% | 28,150 | $383K | No change |
| AMZN Amazon.com Inc. | 1.11% | 1,679 | $368K | Reduce -2.8% |
| UNP Union Pacific Corp. | 0.95% | 1,382 | $315K | No change |
| BRK.B Berkshire Hathaway Inc. Class B | 0.88% | 643 | $291K | Reduce -4.2% |
| NGEX MINERALS LTD | 0.84% | 30,000 | $281K | Add +19.5% |
| TMO Thermo Fisher Scientific Inc. | 0.78% | 500 | $260K | No change |
| GREATLAND GOLD | 0.72% | 3,000,000 | $239K | No change |
| TGT Target Corp. | 0.72% | 1,768 | $239K | Reduce -3.8% |
| FNV Franco-Nevada Corp. | 0.71% | 2,000 | $235K | No change |
| C Citigroup Inc. | 0.70% | 3,315 | $233K | No change |
| EEM iShares MSCI Emerging Market | 0.60% | 4,810 | $201K | No change |
| RUPRF Rupert Resources Ltd. | 0.53% | 63,500 | $177K | No change |
| NESRF Northern Star Resources Ltd. filed as NTHN STAR RES LTD NPV | 0.52% | 18,500 | $172K | No change |
| CAHPF Evolution Mining Ltd. | 0.36% | 40,000 | $119K | Add +23.1% |
| DYLLF Deep Yellow Ltd. | 0.35% | 162,162 | $115K | No change |
| AYA Aya Gold & Silver Inc. | 0.34% | 15,000 | $112K | New |
| VZLA Vizsla Silver Corp. | 0.31% | 60,250 | $103K | No change |
| KGC Kinross Gold Corp. | 0.28% | 10,000 | $93K | No change |
| SNWGF Snowline Gold Corp. | 0.27% | 25,000 | $90K | Add +25.0% |
| AIRRF Aurion Resources Ltd. | 0.20% | 156,125 | $66K | No change |
| AG First Majestic Silver Corp. | 0.20% | 12,000 | $66K | No change |
| SXGDF Southern Cross Gold Ltd. | 0.16% | 20,000 | $54K | New |
| PREDICTIVE DISCOVERY LTD MELBO | 0.13% | 300,000 | $42K | New |
| ERLFF Entree Resources Ltd. | 0.08% | 15,000 | $25K | New |
| BYAGF Banyan Gold Corp. | 0.04% | 100,000 | $13K | No change |
| BRKCF Barksdale Resources Corp. | 0.02% | 50,000 | $6K | No change |
| BEMETALS CORP COM | 0.01% | 132,567 | $4K | Reduce -2.9% |
| WLFFF Wolfden Resources Corp. | 0.00% | 398,802 | $2K | No change |
| GYYSF Spartan Resources Ltd./Austra | 0.00% | 40,000 | $24 | New |
Portfolio Sells Q3 2024 → Q4 2024
| SPY SS SPDR S&P 500 ETF Trust-US | Reduce -60.1% | 1.16% | −1.46 |
| SILV Silvercrest Metals Inc. | Sold out | 0.00% | −1.26 |
| UGI Ugi Corp. | Sold out | 0.00% | −0.78 |
| MRK Merck & Co. Inc. | Sold out | 0.00% | −0.62 |
| OR Osisko Gold Royalties Ltd. | Sold out | 0.00% | −0.51 |
| EFA iShares MSCI Eafe ETF | Reduce -7.9% | 2.86% | −0.29 |
| LLY Eli Lilly & Co. | Reduce -2.2% | 2.73% | −0.21 |
| DGMLF DE Grey Mining Ltd. | Sold out | 0.00% | −0.20 |
| UNH Unitedhealth Group Inc. | Reduce -1.1% | 2.44% | −0.18 |
| IAUX I-80 Gold Corp. | Sold out | 0.00% | −0.17 |
| TGT Target Corp. | Reduce -3.8% | 0.72% | −0.07 |
| GLGDF Gogold Resources Inc. | Sold out | 0.00% | −0.06 |
| FSVEF Firestone Ventures Inc. | Sold out | 0.00% | −0.02 |
| BEMETALS CORP COM | Reduce -2.9% | 0.01% | −0.01 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -4.2% | 0.88% | +0.02 |
| IJR iShares Core S&P Small-Cap E | Reduce -5.4% | 10.89% | +0.17 |
| CSCO Cisco Systems Inc. | Reduce -2.0% | 1.36% | +0.22 |
| AMZN Amazon.com Inc. | Reduce -2.8% | 1.11% | +0.22 |
| JPM JPMorgan Chase & Co. | Reduce -2.2% | 1.77% | +0.31 |
| IJJ iShares S&P Mid-Cap 400 Valu | Reduce -3.1% | 4.94% | +0.31 |
| IJK iShares S&P Mid-Cap 400 Grow | Reduce -2.0% | 5.94% | +0.32 |
| MMM 3M Co. | Reduce -0.4% | 15.70% | +0.38 |
| MSFT Microsoft Corp. | Reduce -0.7% | 7.20% | +0.41 |
| AAPL Apple Inc. | Reduce -7.3% | 5.82% | +0.46 |
| GOOG Alphabet Inc. Class C | Reduce -0.8% | 3.61% | +0.68 |
Portfolio Buys Q3 2024 → Q4 2024
| AYA Aya Gold & Silver Inc. | New | 0.34% | +0.34 |
| NGEX MINERALS LTD | Add +19.5% | 0.84% | +0.29 |
| SXGDF Southern Cross Gold Ltd. | New | 0.16% | +0.16 |
| PREDICTIVE DISCOVERY LTD MELBO | New | 0.13% | +0.13 |
| CAHPF Evolution Mining Ltd. | Add +23.1% | 0.36% | +0.09 |
| ERLFF Entree Resources Ltd. | New | 0.08% | +0.08 |
| SNWGF Snowline Gold Corp. | Add +25.0% | 0.27% | +0.04 |
| GYYSF Spartan Resources Ltd./Austra | New | 0.00% | +0.00 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 28 | $37.4M | MMM, IJR, DVY, IJK, IVV |
| Q1 2026 | 48 | $43.8M | MMM, IJR, DVY, IJK, IVV |
| Q4 2025 | 51 | $43.9M | MMM, IJR, DVY, MSFT, IJK |
| Q3 2025 | 127 | $46.1M | MMM, IJR, DVY, MSFT, IJK |
| Q2 2025 | 50 | $37.9M | MMM, IJR, DVY, MSFT, IJK |
| Q1 2025 | 50 | $34.7M | MMM, IJR, DVY, MSFT, IJK |
| Q4 2024 | 49 | $33.3M | MMM, IJR, DVY, MSFT, IJK |
| Q3 2024 | 52 | $36.3M | MMM, IJR, DVY, MSFT, IJK |
| Q2 2024 | 55 | $34.4M | MMM, IJR, MSFT, AAPL, DVY |